ADUs & Additions in Tustin

City of Tustin Community Development Department, Building Division. The Community Development Department covers Planning, Building, Code Enforcement, Historic Preservation, Housing and Economic Development; the Building Division provides plan review, permit issuance and inspections, and plans are submitted electronically with an inspection request line for scheduling. Permits are valid for 180 days unless work is active and progressing, in which case validity continues until completion. The city offers plan check by appointment for minor projects including patio covers, fences, block walls, pools and spas, and residential kitchen and bath remodels. Properties inside the Cultural Resources District — which was surveyed in the city's 2021 Historic Resources Survey — require historic review and a Certificate of Appropriateness for exterior changes, and staff apply published style guides when assessing compatibility. We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing the city.

The historic core has generous, deep lots with detached garages and alley access behind period homes. Ranch and Legacy tracts are engineered pads with tighter, walled rear yards and association oversight. In practice that means pre-war and early postwar homes in the historic core sit on raised foundations with crawl spaces, undersized electrical services and original galvanized supply lines that surface as soon as a real scope opens up..

All of it, including Old Town Tustin, Tustin Ranch, Tustin Legacy, Peppertree. We are based in Los Angeles at Cahuenga Pass, so Tustin is a short run for our crews rather than a job we service from out of the area.

Detached ADU in this market generally runs $150,000 to $400,000+. What moves it is square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build. We give line-item pricing after seeing the site rather than quoting a number over the phone.

Plan a realistic year. Design and engineering typically take one to three months, city plan check and corrections add several more, and construction usually runs four to eight months depending on size and site access.

Usually yes, and often substantially, because the foundation, walls and roof already exist. The trade-offs are that you lose the garage, and older slabs and framing sometimes need upgrading to meet current code.

California ADU law is designed to allow long-term rental, and an ADU is one of the few ways to add rentable square footage to a single-family lot. Short-term rental rules vary by city, so confirm your local ordinance before counting on that income.

Yes. Plans, engineering, Title 24 and the city submittal are all handled in-house, including responding to plan-check corrections. That is a service we sell on its own, so it is not something we hand off.